Santa Barbara Instrument Group ST-8E NABG CCD camera (1530 x 1020 pixels, 9 x 9
mm, monochromatic, 16 bit, 13.8 x 9.2mm array)
CWF8 color filter wheel with IR-blocking red, green and blue dichroic filters
Exposure Information:
Date: Saturday, November 25, 2000
Location: Joshua Tree National Park, CA
Elevation: Approx. 3500', OAT +37F.
Total exposure time: 100 minutes. (12x5 minutes red, 4x5 min. green, and 4x5 min blue)
Color Stacking: Red luminance behind RGB tricolor image.
Processing: Dark and flat cal, mean (not median) combining and DDP (on luminance) with MaxIm. LRGB stacking, final level adjustment, color balance, blooming repairs/reconstruction, crop and security with Photoshop.
